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MCQs

Total Questions : 193 | Page 13 of 20 pages
Question 121. The red precipitate formed when glucose is heated with “Benedict’s reagent” is ___________
  1.    Cupric hydroxide
  2.    Cuprous hydroxide
  3.    Cupric oxide
  4.    Cuprous oxide
 Discuss Question
Answer: Option D. -> Cuprous oxide
Answer: (d).Cuprous oxide
Question 122. Which of the following is an example of monosaccharide?
  1.    Galactose
  2.    Sucrose
  3.    Lactose
  4.    Maltose
 Discuss Question
Answer: Option A. -> Galactose
Answer: (a).Galactose
Question 123. In maltose, between which of the following carbons there is a linkage?
  1.    C1, C2
  2.    C2, C3
  3.    C1, C4
  4.    C2, C4
 Discuss Question
Answer: Option C. -> C1, C4
Answer: (c).C1, C4
Question 124. Which of the following is an example of disaccharide?
  1.    Glucose
  2.    Fructose
  3.    Galactose
  4.    Maltose
 Discuss Question
Answer: Option D. -> Maltose
Answer: (d).Maltose
Question 125. Fructose and Glucose can be distinguished by ___________
  1.    Selwinoff’s reagent
  2.    Benedict’s reagent
  3.    Fehling’s reagent
  4.    Barfoed’s reagent
 Discuss Question
Answer: Option A. -> Selwinoff’s reagent
Answer: (a).Selwinoff’s reagent
Question 126. Which of the following carbohydrates is a triose?
  1.    Glucose
  2.    Ribose
  3.    Ribulose
  4.    Glyceraldehyde
 Discuss Question
Answer: Option D. -> Glyceraldehyde
Answer: (d).Glyceraldehyde
Question 127. Lactose is a disaccharide of which of the following sugar units?
  1.    Glucose and fructose
  2.    Glucose and galactose
  3.    Glucose and sucrose
  4.    Glucose and ribose
 Discuss Question
Answer: Option B. -> Glucose and galactose
Answer: (b).Glucose and galactose
Question 128. In which of the following, glucose residues are linked by β1-4 glycosidic bonds?
  1.    Amylose
  2.    Starch
  3.    Cellulose
  4.    Glycogen
 Discuss Question
Answer: Option C. -> Cellulose
Answer: (c).Cellulose
Question 129. What is the chemical difference between cellulose and chitin?
  1.    Replacement of the hydroxyl group at C2 with an acetylated amino group
  2.    Replacement of the hydroxyl group at C3 with an acetylated amino group
  3.    Replacement of the hydroxyl group at C4 with an acetylated amino group
  4.    Replacement of the hydroxyl group at C5 with an acetylated amino group
 Discuss Question
Answer: Option A. -> Replacement of the hydroxyl group at C2 with an acetylated amino group
Answer: (a).Replacement of the hydroxyl group at C2 with an acetylated amino group
Question 130. Which of the following is an example of bacterial and yeast polysaccharide?
  1.    Starch
  2.    Glycogen
  3.    Cellulose
  4.    Dextrans
 Discuss Question
Answer: Option D. -> Dextrans
Answer: (d).Dextrans

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